Lace-machine carriage



Dec. 8, 1925. v 1.565.180

G. M. G. MAKIN LACE MACHINE CARRIAGE Filed Jan. 2 1925 2 Sheets-Sheet 1 FIG. 8

SIM wanker "Base. 8, 1925.

G. M. (3. MAKEN LACE MACHINE CARRIAGE W 0 a HI s w AW u 3% H I, 1

p j z a G 2 Sheets-Sheet 2 FIG. 1 1. 1.91 216 174 la Patented t3, 'iQE-Ei GILES M. G. TJIAKIII, 03.? .TEA'HVTU JKET, ELI-IQDE ISLANI).

LACE-MACHINE CARRIAGE.

Application filed January To all whom it may concern.

Be it known that 1, Guns h i. G. MARIN, a citizen of the United States of America, residing at Pawtucket, in the county of Providence and State of Rhode Island, hav invented certain new and useful Improvementsi'n LaceMachine Carriages, of which the following is a specification.

This invention relates to improvements in lace machine carriages.

An important object of the invention is to provide a lace machine carriage having a self threading tonsioning portion.

A further object of the invention is to provide a carriage oi? the above n'ie-ntioned type wherein tension is brought to bear upon the thread after it leaves the bobbin and the latter is left to freely rotate in the cage or opening of the carriage.

A still further object oi the invention is to provide in a lace machine cariln 3c means adapted for performing the combined functions of placing tension upon the thread after it leaves the bobbin and for guiding and holding the bobbin within the carriage, it being noted, however, that said means does not irictionally bear against or retard the tree rotation of the bobbin.

Another object of the invention is to pro vide means for removably locking a bobbin in a lace machine carriage to permit free rotation of the bobbin, but preventing it trom being displaced laterally out oi alinement with the carriage.

Other objects and adavantages will be apparent during the course of the following description.

in the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a plan view of one form oi": lace machine carriage embodying this invention,

Figure 2 is a plan view of the opposite side of the carriage illustrated in Fig. 1,

Figure 3 is a transverse sectional view taken upon line IH HI of Fig. 2,

Figure 1 is a plan view of a modified torm cit carriage embodying this in vention,

Figure 5 is a sectional. view taken upon line VV of Fig. 41-,

Figure 6 is a detail edge view oi the bobbin guiding and thread tensioning portion of the carriage shown in Figs. 1 to 3 in elusive,

Figure 7 is a sectional view of the outer 29, 1925. Serial N0. 5,485.

portion of the carriage shown in Figs. 1 to 3 inclusive,

Figure 8 is a fragmentary perspective view of the bobbin holding and thread tensioning portion of the carriage shown in 1 to 3 inclusive and further illustrates the manner of threading the tensioning portion oi the carriage,

Figure 9 is a similar view to Fig. 8, but taken to illustrate the opposite side thereof,

Figure 10 is an enlarged sectional View taken upon line X-X of Fig. 2,

Figure 11 is a fragmentary plan view of a further modified form of bobbin holding and thread tensioning means, and

Figure illustrates a plan and edge elevational view of the pivotal element shown in Fig. 11.

Referring to the accompanying drawings and particularly to Figs. 1. to 3 inclusive and 6 to 9 inclusive, the numeral 5 designates the carriage having the bobbin opening or cage 6 formed therein within which the bobbin 7 travels By examing Fig. 3, it will be seen that the bobbin is of the double side or disk type having the said sides or disks 8 suitably held together and spaced for permitting the winding of thread therebetween. In Fig. 7, the outer portion of the carriage opening 6 is illustrated as being provided with a guiding rib 9 which projects between the said sides or disks 8 of the bobbin for holding the latter in alinement with this portion of the carriage.

The inner edge portion of the carriage 5 is partially cut through or recessed at 10 for receiving the lever 11 which is pivotally secured at 12 to the carriage. This lever includes an arm 13 which extends substantially circuinferentially of the bobbin 7 and is provided with an inwardly projecting keel or guide 141 which is adapted for being located between the sides or'disks of the bobbin for maintaining the latter in place within the bobbin opening or cage and for insuring against the lateral displacement of the said bobbin. This keel or guide 14 is retained between the sides or disks of the bobbin by the spring 15 which is secured, as illustrated, to the carriage 5. In Fig. 8, the outer face of the lever arm 13 is illustrated as being provided With a longitudinally extending groove 16 which receives a lug or tit carried by the underface of the free end or" the spring 15. The partialiy cut through or recessed portion 10 formed in the inner side portion of the car riage 5 is best illustrated in Fig. 9 as forming a shoulder 17 against which the outer edge 18 of the plate-like backing member 19 bears, the function performed by this plate-like backing member being clearly disclosed at a later point.

The selt-threading tensioning portion of the form of carriage now being described is best illustrated in Figs. 1 and 8 and includes the thread hole 20 formed in the carriage 5. The arm 21 is formed as an extension of one side wall of thethread hole 20 and has its outer end 22 reduced in transverse thickness. The remaining side wall of the thread hole 20 terminates at 23 in a thread confining projection which is slightly spaced from the adjacent edge of the arm 21 and resides in the same plane therewith. It will now be seen that the plate-like back inc 19 overlies or extends in parallelism with thearm 21 and thread confining projection 23 and is arranged in close proximity to the same.

In Fig. 8 the self-threading feature of the tensioning means is illustrated by the showing of the thread T at several stages during .the threading operation. The thread T is shown in full lines prior tothe threading of it into the tensioning means. The thread, at a point spaced from the bobbin. not shown in S, is grasped by the opeator and the thread moved in the direction of the dotted line positions. This lateral movement vof the thread causes the same to pass in back of the arm 21, due to its thinned end 22, and around the thread confining projecting 23 until it is received within the thread opening 2-0 The thread then passes between the plate-like backing 19 and the arm and projection 21 and 23 respectively. The slight pinching of the thread, brought about by the members 19, 21 and 23, will place the proper tension. on the former.

The carriage 5 of the form shown in Figs. l and 5 is very similar to the carriage 5 shown in thepreviously referred to figures, the only difference in construction occurring atthe thread tensioning portion. For this reason, the 'ditl'erences in construction will be pointed out and the similar features will not be specifically referred to, but will bear the same reference numerals as those disclosed in connection with the first form of carriage.

The carriage 5 is entirely out through atlO and forms the shoulder 17 against which the edges of the removable plate-like backing '19 and the arm and threadhole carrying portion to which the plate-like portion 19 is secured. The lever 11 is pivoted to the carriage at 12 and has formed there in the arm 21 and the threadhole 2 the th ead -cenfiniag' pr je ion also being invention.

It will be understood that this carriage with its bobbin holding and thread tensioning means functions in the same manner as described in connection with the term of the invention shown as Figs. 1 to 3 inclusive and 6 to 9 inclusive.

A further form of the invention is shown in Figs. 11 and 12 and includes the carriage 5 which is partially cut through or recessed at 10 to form the plate-like backing 19 and the shoulder 17". The lever 11 is pivoted at 12 to the carriage and is formed with the arm 21", the thread hole 20 and the thread confining projection 23 illustrated. The portion of the lever provided for engaging the shoulder 17* formed on the carriage 5" to limit the pivotal movement of the lever 11" includes the shoulder or flange 18, best illustrated in Fig. 12. It is to be understood that this form of the invention functions similarly to the forms previously described.

I am desirous of having it clearly understood that the thread is tensions-d after leaving the bobbin and the latter is permitted to freely rotate in the cage or opening of the carriage. The pivoted member in the various forms of the intention illustrated in the accon'ipanying drawings are specifically referred to as including an arm portion provided with a heel which is adapted for being received between the sides or disks ofthe bobbin for holding the latter in place to prevent laterial displacement of the same. The various forms are also referred to as including the shoulder portion against which one end of this pivoted member or lever bears to limit the pivotal movement of the said member. The arm portion of the lever is also referred to as failing; to forciblyengage the periphery oi the bobbin, thereby permitting the latter to rotate freely. By carefully examining Fig. 2, it will be seenthat the bobbin 7 is of a proper diameter to clear the arn'i 13 at its periphery although the lreel portion ll of the arm 13 projects intothe space between the sides or disks 01: the said bobbin. The pivotal movement of the arm 13 toward the periphery of the bobbin 7 is limited by the opposite end of the pivoted member or lever engaging the shoulder 17. It is now believed that the structure which permits the tree rotation of the bobbin without the placing of any tension thereupon will be clearly understood.

It is to be understood that. the terms ot this invention herewith shown and described are to be taken as preferred examples oi the same, and that various changes in the snapc, size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, I claim 1. In a device of the class described, a carriage having a bobbin opening, a bobbin traveling in said opening, a pivoted member carried by the carriage for removably holding the bobbin in the opening and guiding it against lateral displacement in respect to the carriage, and a spring element for retaining the pivoted member in its operative position.

2. In a device of the class described, a carriage having a bobbin opening, a bobbin traveling in said opening, a pivoted member carried by the carriage for removably holding the bobbin in the opening and guiding it against lateral displacement in respect to the carriage, a spring element for retaining the pivoted member in its operative position, and means for preventing the pivoted member from forcibly bearing against the bobbin.

3. In a device of the class described, a carriage having a bobbin opening, a bobbin traveling in said opening, a pivoted mem ber carried by the carriage for removably holding the bobbin in the opening and guiding it against lateral displacement in respect to the carriage, a spring element for retaining the pivoted member in its operative position, and means carried by the carriage for preventing the pivoted member :iron'i forcibly bearing against the bobbin.

4-. In a device of the class described, a carriage having a bobbin opening, a bobbin traveling in said opening, a pivoted mem ber carried by the carriage for removably holding the bobbin in the opening and guiding it against lateral displacement in respeet to the carriage, a spring element for.

retaining the pivoted member in its operative position, and a movement limiting surface termed on the carriage and engageablc by the pivoted member for preventing'the letter from forcibly bearing against the bobbin.

5. In a device of the class described, a carriage having a bobbin opening, a bobbin traveling in said opening, a pivoted mem ber carried by the carriage 'lor removably holding the bobbin in the opening and guiding it against lateral displacement in respect to the carriage, a spring element for retaining the pivoted member in its operative position, and a stationary shoulder for preventing the pivotal member from forcibly bearing against the bobbin.

6. In a device of the class described, a -arriage having a bobbin opening, a bobbin of the double disk type traveling in said opening, apivotal member carried by the carriage and projecting between the disks of the bobbin for removably holding and guiding the bobbin, a spring element for retaining the pivotal member in its operative position, and means for preventing the pivotal member from forcibly bearing against the bobbin.

7. In a device of the class described, a carriage having a bobbin opening, a bobbin of the double disk type traveling in said opening, a pivotal member carried by the carriage and projecting between the disks of the bobbin for removably holding and guiding the bobbin, and a stationary shoulder for preventing the pivotal member from forcibly bearing against the bobbin.

8. In a device of the class described, a carriage having a bobbin opening, a bobbin of the double disk type traveling in said opening, a pivotal member carried by the carriage, a keel depending from one end of the pivotal member and projecting between the disks of the bobbin for removably holding and guiding the latter, and a spring bearing against the upper face of the same end of said pivotal member.

9. In a device of the class described, a carriage having a bobbin opening, a bobbin of the double disk type traveling in said opening, a pivotal member carried by the carriage, a keel depending from one end of the pivotal member and projecting between the disks of the bobbin for removably holding and guiding the latter, the upper face of the same end of said pivotal memher having a groove formed therein, a spring carried by the carriage and having a tip projecting into said groove, and means for preventing the pivotal member from for ibly bearing against the bobbin.

10. In a device of the class described, the combination with a bobbin carriage, of thread tensioning means carried by the carriage, said tensioning means including an.

arm extending transversely to the direction of travel of the thread, a projection slightly spaced from the arm, and a plate-like backing in close proximity-to the arm and projection, said arm, projection and platelike backing functioning to place tension on thread passing therebetween.

1.1. In a device of the type described, the combination with a bobbin carriage, of thread tensioning means carried by the carriage, said tensioning means including an arm extending transversely to the direc tion oi travel of the thread, a projection. slightly spaced from and located in the same plane as the arm, and a plate-like backing in close proximity to the arm and projection, said arm, projection, and plate-like backing functioning to place tension on thread passing therebetween.

12. In a device of the type described, a carriage, a bobbin traveling therein, means pivotally carried by the carriage for removably' holding and guiding the bobbin and for placing tension on the thread after it leaves the bobbin, and a spring bearing against said pivotal means for moving one of its ends toward said bobbin.

13. In a device of the type described, a carriage, bobbin traveling therein, means pivotally carried by the carriage for removably holding and guiding the bobbin and for placing tension on the thread after it leaves the bobbin, a spring bearing against said pivotal means for moving one 01" its ends toward said bobbin, and means for limiting the pivotal movement of the first mentioned means.

14. In a device of the type described, a carriage, a bobbin traveling therein, means pivotally carried by the carriage for removably holding and guiding the bobbin and for placing tension on the thread after it leaves the bobbin, a spring bearing against said pivotal means for moving one of its ends toward said bobbin, and a shoulder formed on said carriage for limiting the pivotal movement of the first mentioned means. I

15. In a device of the type described, the combination with a bobbin carriage, of a threading device pivotally carried by said carriage, said threading device having a thread-hole, and including means for guiding thread into said hole.

16. In a device of the type described, the combination with a bobbin carriage, of a threading device pivotally carried by said carriage, said threading device having a thread-hole formed with its axis extending at right angles to the plane of the carriage, and an arm formed as an extension of the wall of the hole and extending longitudinally ot' the device for guiding the thread intosaid hole.

17. In a device of the type described, the

combination with a bobbin carriage, of a threading device pivotally carried by said carriage, said threading device having a thread-hole provided with a thread entrance,

an arm formed as an extension of the wall of the hole for guiding thread through said entrance, and means for confining thread in said hole.

18. In a device of the type described, a carriage, a bobbin traveling therein, and means pivot ally carried by the carriage and cooperating with a portion thereof for placing tension on the thread after it leaves the bobbin, said means having a thread-hole therethrough provided with a thread ontrance and an arm for guiding the thread into said entrance,

19. In a device of the type described, a carriage, a bobbin traveling therein, and an element pivoted intermediate its ends to said carriage, the portion of said pivoted member located to one side of said pivot point acting as means tor removably holding and guiding the bobbin and the portion on the opposite side of said pivot point cooperating with the adjacent portion of said earriage for placing tension on the thread after it leaves the bobbin.

20. In a device of the type described, a carriage having a bobbin opening, a bobbin traveling in said opening, a pivoted me1nber carried by the carriage for removably holding the bobbin in said opening and guiding it against lateral displacement in respect to the carriage, a spring for forcing the pivoted member toward the bobbin. a shoulder carried by the carriage, and a lateral projection carried by the pivoted member and bearing against the said shoulder for preventing the pivoted member from forcibly bearing against the bobbin.

In testimony whereof I afiix my signature.

Glens M. e. MAKIN. 

